Bad printing output in laserjet 3030

After 6 years as my father have not use his HP Laserjet3030 he gave it to me as a present. Unfortunately it is not printing well (printed page picture attached). Most of the page is black and the text is printed on the page few times (like an echo).

Re: Bad printing output in laserjet 3030

I see that you are an HP employee so I would like to share with you my frustration from all those nice forums that do not assist me. This is already the forth place I am posting my problem (with different titles) and until now the only advise I got was to post the problem in different places.

I do not understand who is supporting these forums on behalf of HP but I expected a more professional help then I got till now. I expected that someone with the knowledge in the product will look in the picture and tell me:

A. This is a tuner problem (which is expensive so I would like to buy it only if it solves the problem)

B. We do not know what is the problem so please take it to the lab (which cost money even for a visit so I would like to prevent it if not needed)